Home / 8,489.35-11,715.25-4,712.41

Finding the Fourth Proportional to 8,489.35, 11,715.25 and 4,712.41

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Solution

The fourth proportional to 8,489.35, 11,715.25 and 4,712.41 is: 6,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,489.35 : 11,715.25 = 4,712.41 : x
  2. Step 2: Convert to fraction form
    8,489.35/11,715.25 = 4,712.41/x
  3. Step 3: Cross multiply
    8,489.35x = 11,715.25 × 4,712.41
  4. Step 4: Simplify right side
    8,489.35x = 55,207,061.25
  5. Step 5: Solve for x
    x = 55,207,061.25/8,489.35
  6. Step 6: Final answer
    x = 6,503.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.